After purchasing the premium version, the software stopped working, which is disappointing. I hope it's not a scam.

It's definitely a bug! We're working on fixing this for good. Thank you guys for the feedback!

I'm still on the trial and mine has stopped working too. I've checked in the "bugs" category and others are reporting this issue as well. I don't think it's a scam, I think it's a bug. Hope they sort it soon!